How to Square a Number in JavaScript

In this post, we'll go over the three best ways to square a number in JavaScript.
A square number is a number that results from taking a number and multiplying it by itself.
For various reasons, you'll want to know how to square a number in JavaScript.
Math.pow()
The best way to square a number is to use the Math.pow()
function.
This function is used to take a number and raise it to a power. When it comes to squaring a number, the power is always equal to 2.
Here's an example of squaring the number 5
:
console.log(Math.pow(5, 2)); // 25
In general, you can use the Math.pow()
function to square any number by setting the exponent to 2.
Exponentiation Operator
Another easy way to square a number is to use the exponentiation operator. The exponentiation operator is the **
symbol.
Here's how to use the exponentiation operator to square the number 5
:
console.log(5 ** 2); // 25
This operator takes two numbers and returns the first number raised to the power of the second number.
Helper function
Finally, the last way to square a number is to create a helper function that squares a number that you pass in.
Here's a function that squares a number:
const square = (number) => number ** 2;
Now you can use this helper function:
console.log(square(5)); // 25
Conclusion
In this post, we explored the three best ways to square a number in JavaScript, using the Math.pow()
, **
, and a custom helper square()
function.
Hopefully, you found this post helpful and informative.
Thanks for reading and happy coding!
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